Vodafone's Broken Promises and Technical Issues

I am a Vodafone mobile service subscriber, and on 08/25/2203, I received an SMS from Vodafone stating that I could add 5-10-15 TL to my balance after recharging my account with 100 TL. I was intrigued, so I clicked the link in the message to make the specified top-up, only to find out that the minimum amount for top-up was actually 60 TL. When I contacted customer service, I was told that there was a problem with the application that would be resolved within 24 hours. Even after waiting 24 hours, I encountered the same issue when I reopened the app. When I called customer service again, I was told that the SMS I received was the result of a system error and should not be taken into account. It is obvious that the company must accept responsibility for system errors. I believe the company should provide the service promised to customers. Vodafone must address this issue and alleviate my frustration as a result of their technical flaws. Furthermore, the customer service representative's dismissal of the problem as a "system error" has exacerbated my dissatisfaction.